Table of Contents
Advertisement
Page 34
FAULT CODE
"LP" Indicator
Refrigerant system's low-pressure
switch is open.
"LP5" Indicator
Heat Pump has locked out due to
five (5) LP (low-pressure) faults
during one call for heating or
cooling.
"OtA" Indicator
Water temperature exceeded
110°F The unit locked out due to
an over temperature alarm. It will
not be reset until the water sensor
drops to 100°F or lower.
"FLO" Indicator
Low or no water flow detected.
RULE OUT
STEP 1:
Defective low-
Identify which refrigerant circuit is causing fault.
pressure switch
Replace high-pressure switch for that circuit. If error
or wiring.
re-occurs, proceed to next step.
STEP 2:
A qualified HVAC technician should confirm coolant
Low refrigerant
charge is correct for both refrigerant circuits. See heat
charge.
pump data plate for correct charge and verify charge.
Please note – improperly charging the system can
void manufacturer's warranty.
STEP 3:
Call heat pump installer or AquaCal AutoPilot
Customer Support for further assistance.
STEP 1:
Identify which refrigerant circuit is causing fault.
Defective low-
Replace high-pressure switch for that circuit. Then re-
pressure switch
set heat pump by turning power off, then back on. If
or wiring.
error re-occurs, proceed to next step. If error re-
occurs, proceed to next step.
STEP 2:
A qualified HVAC technician should confirm coolant
Low refrigerant
charge is correct for both refrigerant circuits. See heat
charge.
pump data plate for correct charge and verify charge.
Please note – improperly charging the system can
void manufacturer's warranty.
STEP 3:
Call heat pump installer or AquaCal AutoPilot
Customer Support for further assistance.
STEP 1:
Improper usage
Determine if another heat pump (gas heater, solar
of other heating
heater, etc.) is heating water being sent directly to
equipment
Great Big Bopper. This situation will need to be
corrected before continuing to use Great Big Bopper.
STEP 2:
Incorrect reading
Verify existing water temperature with an accurate
from water
external meter. If Great Big Bopper's sensor is
temperature
inaccurate, water temperature sensor requires
sensor.
replacement. If error re-occurs, proceed to next step.
STEP 3:
Call heat pump installer or AquaCal AutoPilot
Customer Support for further assistance.
STEP 1:
Water pump off
Confirm water pump on. Run at high speed to
or on too low a
determine if error persists. If error re-occurs, proceed
speed.
to next step.
STEP 2:
Valves in
Confirm water is not being diverted away from Great
incorrect
Big Bopper, or insufficient water balance exists. If
position.
error re-occurs, proceed to next step.
RESOLUTION
Advertisement
Table of Contents
